Patricia Highsmith: Ripley Under Ground

From the Publisher:
The gallery is staging another Derwatt exhibition. But now an American collector claims that the expensive masterpiece he bought three years ago is a fake. It is, of course. And he wants to talk to Derwatt. But he, inconveniently, is dead.

Ripley needs the perfect solution to keep his role in the fraud a secret and his reputation clean, but not everyone¹s nerves are as steady as his, especially when it comes to murder.